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钕铁硼(NdFeB)
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| 第三代稀土永磁---NdFeB主要是由稀土材料金属钕和铁及硼通过粉末治金的制造工艺生产而成。是目前磁性最强的永磁材料,磁稳定性好,不易退磁,广泛应用于电子器件、医疗器件、电声器材、微特电机、磁耦合器、磁分离器等方面。 |
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| NdFeB,the 3th
generation of rare-earth permanent magnet,is produced by powder
metallurgical method with neodymium(rare-earth metal),iron and
boron.At present it is the most powerful magnet.with good
stability,good demagnetization resistance,it is widely used in
electronic devices,medical devices,electroacoustic
apparatus,mini-special motor, magnetic coupler,
magnetic
separator,etc. |
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| 物理特性
PHYSICAL CHARACTERISTICS |
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项目 Item
|
单位
Unit |
数值
Value |
居里温度
Tc Curie
temperature |
0C |
310-340 |
温度系数
Temp.coefficient |
α
Br |
%0C |
-0.10~-0.12 |
| α Hcj |
%0C |
-0.55~-0.6 |
回复磁导率
μrec
Relative recoil permeability |
|
1.05~1.10 |
| 密度
D Density |
g/cm3 |
7.4~7.5 |
| 硬度
H Hardness |
HV |
560~580 |
| 电阻率
ρResistivity |
μΩ.cm |
150 |
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| NdFeB
磁体系列的磁性参数: |
| Magnetic
Specifications of NdFeB Series Materials |
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牌号
Type NO |
剩磁
Remanence
Br |
矫顽力
Coercivity
Hcb |
内禀矫顽力
Intrinsic Coercivity Hcj |
最大磁能积
Max.energy product
(BH)max |
工作温度
Ambient
Temperature T |
| |
T |
KGs |
KA/m |
KOe |
KA/m |
KOe |
KJ/m3 |
MGOe |
0C |
| N30 |
1.08-1.16 |
10.8-11.6 |
≥780 |
≥9.8 |
≥955 |
≥12 |
233-255 |
28-32 |
≤80 |
| N35 |
1.17-1.23 |
11.7-12.3 |
≥850 |
≥10.7 |
≥955 |
≥12 |
263-287 |
33-36 |
≤80 |
| N38 |
1.23-1.27 |
12.3-12.7 |
≥876 |
≥11 |
≥955 |
≥12 |
287-311 |
36-39 |
≤80 |
| N40 |
1.27-1.32 |
12.7-13.2 |
≥876 |
≥11 |
≥955 |
≥12 |
311-326 |
39-41 |
≤80 |
| N42 |
1.32-1.35 |
13.2-13.5 |
≥876 |
≥11 |
≥955 |
≥12 |
326-341 |
41-43 |
≤80 |
| N30H |
1.08-1.14 |
10.8-11.4 |
≥780 |
≥9.8 |
≥1353 |
≥17 |
223-247 |
28-31 |
≤120 |
| N33H |
1.14-1.17 |
11.4-11.7 |
≥820 |
≥10.3 |
≥1353 |
≥17 |
255-271 |
32-34 |
≤120 |
| N35H |
1.17-1.22 |
11.7-12.2 |
≥860 |
≥10.8 |
≥1353 |
≥17 |
271-286 |
34-36 |
≤120 |
| N38H |
1.22-1.26 |
12.2-12.6 |
≥900 |
≥11.3 |
≥1353 |
≥17 |
286-302 |
36-39 |
≤120 |
| N27SH |
1.02-1.07 |
10.2-10.7 |
≥740 |
≥9.3 |
≥1592 |
≥20 |
199-223 |
25-28 |
≤150 |
| N30SH |
1.08-1.13 |
10.8-11.3 |
≥780 |
≥9.8 |
≥1592 |
≥20 |
223-247 |
28-31 |
≤150 |
| N33SH |
1.14-1.17 |
11.4-11.7 |
≥720 |
≥10.3 |
≥1592 |
≥20 |
247-271 |
31-34 |
≤150 |
| N25UH |
1.00-1.06 |
10.0-10.6 |
≥710 |
≥8.9 |
≥1990 |
≥25 |
183-215 |
23-27 |
≤180 |
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| 1、可根据客户要求生产长方行、圆形、瓦形等各种形状,不同充磁方式的钕铁硼磁体。 |
| We
can provide NdFeB magnets in shapes of block,disc,ring,tile with
different directions of magnetization according to customer's demand. |
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| 2、一般方形磁铁尺寸:(Nominal
block magnet dimensions) |
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公差(Tolerance) |
长(L) |
宽(W) |
高(H) |
| 2--200mm |
1--150mm |
0.5-80mm |
| 0.08-0.40mm |
0.08-0.40mm |
0.06-0.20mm |
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| 3
、一般圆(环)磁铁尺寸:(Nominal ring magnet dimensions) |
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公差(Tolerance) |
外径(O/Dia) |
内径(I/Dia) |
高(H) |
| 1-150mm |
1-140mm |
0.5-80mm |
| 0.08-0.40mm |
0.08-0.40mm |
0.06-0.20mm |
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| 4 、磁体表面防氧化层可采用镀白锌、五彩锌、镀镍、磷化、或环氧树脂喷涂。 |
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The coating can be white zine,color zine,nickel,phosphate processing or
resin. |
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